EME: Close existing sessions on CDM failure

media/test/data/eme_player_js/clearkey_player.js

Index: media/test/data/eme_player_js/clearkey_player.js
diff --git a/media/test/data/eme_player_js/clearkey_player.js b/media/test/data/eme_player_js/clearkey_player.js
index 369a6ab37433d4ca3f12273a3ca34c0f466d2187..298e9935f491475356035713367ecdc50494a248 100644
--- a/media/test/data/eme_player_js/clearkey_player.js
+++ b/media/test/data/eme_player_js/clearkey_player.js
@@ -25,9 +25,13 @@ ClearKeyPlayer.prototype.onMessage = function(message) {
   var jwkSet = Utils.createJWKData(keyId, key);
   Utils.timeLog('Calling update: ' + String.fromCharCode.apply(null, jwkSet));
   message.target.update(jwkSet).catch(function(error) {
-    // Ignore the error if a crash is expected. This ensures that the decoder
-    // actually detects and reports the error.
-    if (this.testConfig.keySystem != 'org.chromium.externalclearkey.crash') {
+    // If a crash is expected, wait for the session to be closed.
+    if (this.testConfig.keySystem == 'org.chromium.externalclearkey.crash') {
+      message.target.closed.then(
+          function(result) { Utils.setResultInTitle('SESSION_CLOSED'); },
+          function(error) { Utils.failTest(error); });
+    } else {
+      // Failure unexpected.
       Utils.failTest(error, EME_UPDATE_FAILED);
     }
   });